#VU118630 Stack-based buffer overflow in SonicOS - CVE-2025-40601

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Main Vulnerability Database Vulnerabilities #VU118630

#VU118630 Stack-based buffer overflow in SonicOS - CVE-2025-40601

Published: November 20, 2025


Vulnerability identifier: #VU118630
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2025-40601
CWE-ID: CWE-121
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
SonicOS
Software vendor:
SonicWall

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary error within the SonicOS SSLVPN interface. A remote attacker can send specially crafted packets to the SSLVPN interface, trigger a stack-based buffer overflow and perform a denial of service (DoS) attack.


Remediation

Install updates from vendor's website.

External links